Description of problem:
=======================
DHT :- core was generated while running few test on volume



Version-Release number of selected component (if applicable):
=============================================================
0.803.gitf64666f.el6.x86_64



Actual Result:-
===============
#0  0x00007fb6f6214e8f in cluster_handle_marker_getxattr
(frame=0x7fb70053c3a8, loc=0x7fb6ef744b70, name=0x0,
vol_uuid=0x7fb6f004789c "", unwind=0x7fb6f61f0170 <dht_getxattr_unwind>,
     populate_args=0x7fb6f61ed9f0 <dht_marker_populate_args>) at
../../../../xlators/lib/src/libxlator.c:461
#1  0x00007fb6f62037d8 in dht_getxattr (frame=0x7fb70053c3a8,
this=0x7fb6f000aa40, loc=0x7fb6ef744b70, key=<value optimized out>,
xdata=0x0) at dht-common.c:2949
#2  0x00000035a9c27afb in default_getxattr (frame=0x7fb70053c3a8,
this=0x7fb6f000bde0, loc=0x7fb6ef744b70, name=0x0, xdata=<value
optimized out>) at defaults.c:1968
#3  0x00000035a9c27afb in default_getxattr (frame=0x7fb70053c3a8,
this=0x7fb6f000d120, loc=0x7fb6ef744b70, name=0x0, xdata=<value
optimized out>) at defaults.c:1968
#4  0x00000035a9c27afb in default_getxattr (frame=0x7fb70053c3a8,
this=0x7fb6f000e3b0, loc=0x7fb6ef744b70, name=0x0, xdata=<value
optimized out>) at defaults.c:1968
#5  0x00000035a9c27afb in default_getxattr (frame=0x7fb70053c3a8,
this=0x7fb6f000f690, loc=0x7fb6ef744b70, name=0x0, xdata=<value
optimized out>) at defaults.c:1968
#6  0x00000035a9c27afb in default_getxattr (frame=0x7fb70053c3a8,
this=0x7fb6f0010970, loc=0x7fb6ef744b70, name=0x0, xdata=<value
optimized out>) at defaults.c:1968
#7  0x00007fb6f558c63e in mdc_getxattr (frame=0x7fb70053c2fc,
this=0x7fb6f0011c50, loc=0x7fb6ef744b70, key=0x0, xdata=0x0) at
md-cache.c:1805
#8  0x00007fb6f536d957 in io_stats_getxattr (frame=0x7fb70053c250,
this=0x7fb6f0012f50, loc=0x7fb6ef744b70, name=0x0, xdata=0x0) at
io-stats.c:2287
#9  0x00007fb6f5161ee6 in ga_getxattr (frame=0x7fb70053c1a4,
this=0x7fb6f0014240, loc=<value optimized out>, name=0x0, xdata=0x0) at
gfid-access.c:1234
#10 0x00000035a9c27afb in default_getxattr (frame=0x7fb70053c1a4,
this=0x7fb6f0015370, loc=0x7fb6e4006920, name=0x0, xdata=<value
optimized out>) at defaults.c:1968
#11 0x00007fb6f9ca64aa in fuse_listxattr_resume (state=0x7fb6e4006900)
at fuse-bridge.c:3532
#12 0x00007fb6f9ca1565 in fuse_resolve_done (state=<value optimized
out>) at fuse-resolve.c:644
#13 fuse_resolve_all (state=<value optimized out>) at fuse-resolve.c:671
#14 0x00007fb6f9ca1296 in fuse_resolve (state=0x7fb6e4006900) at
fuse-resolve.c:635
#15 0x00007fb6f9ca15ae in fuse_resolve_all (state=<value optimized out>)
at fuse-resolve.c:667
#16 0x00007fb6f9ca1613 in fuse_resolve_continue (state=<value optimized
out>) at fuse-resolve.c:687
#17 0x00007fb6f9ca1648 in fuse_resolve_inode (state=0x7fb6e4006900) at
fuse-resolve.c:345
#18 0x00007fb6f9ca14e0 in fuse_resolve (state=0x7fb6e4006900) at
fuse-resolve.c:632
#19 0x00007fb6f9ca158e in fuse_resolve_all (state=<value optimized out>)
at fuse-resolve.c:660
#20 0x00007fb6f9ca15d8 in fuse_resolve_and_resume (state=0x7fb6e4006900,
fn=0x7fb6f9ca6060 <fuse_listxattr_resume>) at fuse-resolve.c:699
#21 0x00007fb6f9cb4bf0 in fuse_thread_proc (data=0x1af1280) at
fuse-bridge.c:4899
#22 0x0000003fc3e079d1 in start_thread () from /lib64/libpthread.so.0
#23 0x0000003fc36e88fd in clone () from /lib64/libc.so.6